DE69516412D1 - METHOD FOR PRODUCING PENTAFLUORETHANE - Google Patents

METHOD FOR PRODUCING PENTAFLUORETHANE

Info

Publication number
DE69516412D1
DE69516412D1 DE69516412T DE69516412T DE69516412D1 DE 69516412 D1 DE69516412 D1 DE 69516412D1 DE 69516412 T DE69516412 T DE 69516412T DE 69516412 T DE69516412 T DE 69516412T DE 69516412 D1 DE69516412 D1 DE 69516412D1
Authority
DE
Germany
Prior art keywords
hfc
mixture
cfc
extractant
pentafluorethane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69516412T
Other languages
German (de)
Other versions
DE69516412T2 (en
Inventor
Satoru Kohno
Takashi Shibanuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP19306694A external-priority patent/JP2827912B2/en
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Application granted granted Critical
Publication of DE69516412D1 publication Critical patent/DE69516412D1/en
Publication of DE69516412T2 publication Critical patent/DE69516412T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds

Abstract

Object There is provided a process of effectively separating pentafluoroethane (HFC-125) out of a mixture of HFC and chloropentafluoroethane (CFC-115). Constitution When the mixture of HFC-125 and CFC-115 is subjected to extractive distillation so as to obtain concentrated HFC-125, methanol, ethanol, butanol, propyl alcohol, pentafluoropropanol, tetrafluoropropanol or acetone is used as an extractant, whereby CFC-115 is obtained as a distillate product and a mixture of HFC-125 and the extractant as a bottom product is obtained. Then, the extractant is separated from HFC-125 by distilling the mixture and re-used in the extractive distillation. <IMAGE>
DE69516412T 1994-08-17 1995-05-08 METHOD FOR PRODUCING PENTAFLUORETHANE Expired - Fee Related DE69516412T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19306694A JP2827912B2 (en) 1994-04-20 1994-08-17 Method for producing pentafluoroethane
PCT/JP1995/000874 WO1996005158A1 (en) 1994-08-17 1995-05-08 Process for producing pentafluoroethane

Publications (2)

Publication Number Publication Date
DE69516412D1 true DE69516412D1 (en) 2000-05-25
DE69516412T2 DE69516412T2 (en) 2000-09-21

Family

ID=16301642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69516412T Expired - Fee Related DE69516412T2 (en) 1994-08-17 1995-05-08 METHOD FOR PRODUCING PENTAFLUORETHANE

Country Status (10)

Country Link
US (1) US5919340A (en)
EP (1) EP0778254B1 (en)
KR (1) KR100348203B1 (en)
CN (1) CN1065228C (en)
AT (1) ATE191906T1 (en)
AU (1) AU695681B2 (en)
DE (1) DE69516412T2 (en)
ES (1) ES2146757T3 (en)
RU (1) RU2121993C1 (en)
WO (1) WO1996005158A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3520718B2 (en) 1997-05-22 2004-04-19 ダイキン工業株式会社 Method for producing pentafluoroethane
CN1120828C (en) * 1999-11-10 2003-09-10 浙江省化工研究院 Process for purifying pentafluoroethane
US7060165B2 (en) * 2002-02-14 2006-06-13 Pcbu Services, Inc. Processes for purification and production of fluorocarbons
FR2865731B1 (en) * 2004-01-30 2007-09-07 Solvay PROCESS FOR PRODUCING A HYDROFLUOROALCAN
US8075742B2 (en) * 2009-02-27 2011-12-13 Midwest Refrigerants, Llc Apparatus and process for the separation and purification of ideal and non-ideal refrigerant mixtures
EP2497579A1 (en) * 2011-03-08 2012-09-12 RBPbeheer BV Method and installation for processing materials from disposed cooling equipment
FR3035104B1 (en) 2015-04-14 2017-04-07 Arkema France PROCESS FOR PURIFYING PENTAFLUOROETHANE

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL264123A (en) * 1960-04-28
NL131714C (en) * 1963-02-06
US3689374A (en) * 1971-05-10 1972-09-05 Phillips Petroleum Co Process for separating halogenated hydrocarbons by extractive distillation
JPS6092879A (en) * 1983-10-27 1985-05-24 Fujitsu Ltd Thermal printer
GB9018372D0 (en) * 1990-08-21 1990-10-03 Ici Plc Separation process
US5087329A (en) * 1991-05-16 1992-02-11 E. I. Du Pont De Nemours And Company Process for separating pentafluoroethane from a mixture of halogenated hydrocarbons containing chloropentafluoroethane
JPH0692879A (en) * 1992-09-11 1994-04-05 Daikin Ind Ltd Method for purifying pentafluoroethane
JP3262454B2 (en) * 1993-05-25 2002-03-04 昭和電工株式会社 Method for purifying pentafluoroethane
AU684757B2 (en) * 1993-05-25 1998-01-08 Showa Denko Kabushiki Kaisha Purification process of pentafluoroethane
DE69513152T2 (en) * 1994-02-07 2000-06-21 Du Pont METHOD FOR SEPARATING PENTAFLUORETHANE FROM A MIXTURE CONTAINING HALOGENED HYDROCARBONS AND CHLORPENTAFLUORETHANE
EP0743933B1 (en) * 1994-02-07 1999-06-09 E.I. Du Pont De Nemours And Company Process for separating pentafluoroethane from a mixture comprising halogenated hydrocarbons and chloropentafluoroethane
FR2716449B1 (en) * 1994-02-24 1996-04-05 Atochem Elf Sa Process for the purification of pentafluoroethane.
US5470442A (en) * 1994-03-11 1995-11-28 E. I. Du Pont De Nemours And Company Separating and removing impurities from tetrafluoroethanes by using extractive distillation

Also Published As

Publication number Publication date
MX9701185A (en) 1997-10-31
ATE191906T1 (en) 2000-05-15
US5919340A (en) 1999-07-06
WO1996005158A1 (en) 1996-02-22
CN1065228C (en) 2001-05-02
EP0778254B1 (en) 2000-04-19
DE69516412T2 (en) 2000-09-21
EP0778254A1 (en) 1997-06-11
CN1160391A (en) 1997-09-24
AU2353695A (en) 1996-03-07
EP0778254A4 (en) 1998-01-28
ES2146757T3 (en) 2000-08-16
AU695681B2 (en) 1998-08-20
RU2121993C1 (en) 1998-11-20
KR970704653A (en) 1997-09-06
KR100348203B1 (en) 2002-09-18

Similar Documents

Publication Publication Date Title
US5211817A (en) Separation process
EP0626362B1 (en) Purification process of pentafluoroethane
KR960700984A (en) Purification method of binary azeotropes
DE69221892D1 (en) METHOD FOR REMOVING 2-CHLORINE-1,1-DIFLUORETHYLENE FROM 1,1,1,2-TETRAFLUORETHANE AND CO-PRODUCTION OF 2-CHLORINE-1,1,1,2-TETRAFLUORETHANE
DE69516412T2 (en) METHOD FOR PRODUCING PENTAFLUORETHANE
DE3871045D1 (en) METHOD FOR PRODUCING PURE TETRAFLUORETHYLENE.
US2500329A (en) Azeotropic distillation of 1-butanol from methyl nu-butyl ketone
US4342627A (en) Dehydration of alcohols
DE69813859T2 (en) METHOD FOR PRODUCING 1,1,1,2,2-PENTAFLUOROETHANE
US4620901A (en) Separation of acetone from methanol by extractive distillation
US4501645A (en) Separation of methanol from acetone by extractive distillation
ATE66447T1 (en) PROCESS FOR OBTAINING 1,3-BUTADIENE.
US5230778A (en) Purification of isoflurane by extractive distillation
EP1026139A4 (en) Process for preparing pentafluoroethane
US3409513A (en) Purification of acetone by hydroextractive distillation
US2831801A (en) Process for the recovery of isobutanol from alcoholic mixtures
US4543164A (en) Separation of methyl acetate from methanol by extractive distillation
CA2197171A1 (en) Process for producing pentafluoroethane
US5360520A (en) Separation of 2-butanol from t-amyl alcohol by extractive distillation
DE69609815T2 (en) METHOD FOR PURIFYING PENTAFLUORETHANE
ATE98888T1 (en) PROCESS FOR THE SEPARATION OF DIACETYL-CONTAINING MIXTURES OF METHYLETHYLKETONE, ETHYL ACETATE, ETHANOL, WATER AND, IF POSSIBLE, TOLUENE AND N-HEXANE.
RU97103522A (en) PENTAFLUORETHANE PRODUCTION METHOD
US4544454A (en) Separation of isopropyl ether from methyl ethyl ketone by extractive distillation
US5385649A (en) Separation of 1-hexene from hexane by azeotropic distillation
US3297762A (en) Separating ammonia from trimethylamine

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee